I usually buy a few samples since 1ml lasts longer than it sounds, but this is the only thing I've ever bought a full bottle of:
https://sucreabeille.com/products/blood-and-bone-with-old-gods-of-appalachia
Beyond that, I really like Imaginary Authors, particularly Sundrunk and Slow Explosions. Really want to try their new glacier named fragrance too, but they aren't selling sample sizes yet :(
Normally I like outdoorsy, foresty, or watery scents. What are your favorites?
Yep, just right on their site. There are a few other sites that sell samples of bigger name stuff that you can try, but yeah.